Cael schinke



(N o Model.)

0. SGHINKE.

WRENCH.

No. 280,673. Patented July 3. 1883.

um i Willi Inventor,

N. PETERS Phviu-Limognphnr, Wminm DJ.

UNITED STATES PATENT ()FFICE.

CARL SOHINKE, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE ST. LOUIS IRON AND MACHINE WORKS, OF SAME PLACE.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 280,673, dated July 3, 1883.

Application filed January 27, 1883. (No model.)

To all whom it may concern Be it known that I, CARL ScHINKE, of St. Louis, Missouri, have made a new and useful Improvement in WVrenches, of which the fol- 5 lowing is a full, clear, and exact description, reference being had to the annexed drawings, making part of this specification, in which- Figure 1 is an edge View of the improved wrench; Fig. 2, a side elevation; Fig.3, aside elevation, the parts being in a different position from that of Fig. 2; Fig. 4, an elevation of the opposite edge to that shown in Fig. 1; Fig. 5, a side elevation, showing the jaws extended; and Fig. 6, an end elevation of the parts shown in Fig. 5.

The same letters of reference denote the same parts.

The present invention relates more especially to that class of wrenches termed monkey-wrenches.

It consists in the mode of adjusting the movable jaw of the wrench.

A represents the wrench handle. It is jointed at a to a part, B, which is provided with an extension, B, constituting the fixed jaw of the wrench.

represents the movable jaw of the wrench. It is adapted to be adjusted toward and from the extension or jaw B to suit the varying sizes of the nuts, the adjustment being in effect automatic, as follows: The jaw C is extended at c, and at c is jointed to the handle- A. The other end, 0 of the jaw C is adapted to bear against the part B as the wrench is c and facilitate the operation of the wrench in opening the jaws apart the end 0 is attached to a slide,-D, which works in the part B, as shown. To prevent the end 6" and slide I) 40 from being drawn away from the part B, the

moved to turn up the nut, and .to guide the end I slide is dovetailed, as shown at (1, Figs. 1, 2, 3, 5. The jointc is made to work loose in the wrench-handle, as shown in Figs. 2, 3, 5. Both jaws B C may be extended to form jaws B C upon the opposite side of the part'B, as 5 shown in Figs. 5 and 6. In such case the part B should be suitably mortised out, substantially as shown at B, Fig. 6, to provide for the movement of the part 0 0 toward and from the parts B B. I

In Fig. 3 the wrench is shown holding a larger nut, E, than the one, E, in Fig. 2.

I am aware that it is not broadly new in a wrench to have the movable jaw adapted to slide in ways.

I claim 1. In a wrench, as described, the handle A, jointed at its inner end to the upper part of B, the jaw O, jointed to the handle A at 0 and attached to the dovetail slides D, working oo in the upper part of B, the several parts combined and operating substantially as described.

2. The combination of the handle A, the part B, having-the extensions B B the jaw O, jointed to said handle and extended at O, and the slide D, having the dovetail d and working in the part B, whereby the upper jaw moves at right angles to the handle, substantially as described.

3. In a wrench, a handle jointed at its inner end to the piece having .the fixed jaw and to the movable jaw, which is provided with a slide or guide, whereby the movement of the said jaw is at right angles to the handle, substantially as described.

\Vitness my hand the 16th January, 1883.

CARL SOHINKE. IVitnesses:

,O. D. MOODY, SAME. S. BOYD. 

